Not necessarily.

With NBA vs. NBA, that brings in comparison punches and other new ideas. For example, maybe my player dunked in the past on my opposition, beat their team, got traded from it, whatever.

NBA vs. NFL brings in different material, not necessarily more of it. Why don't u just add to the poll an option of NBA vs. NBA, just seems to make more attractive matchups if the two people might have actually played against each other before.